THE HIGHER THE CONTENT OF CARBON DIOXIDE IN THE AIR,___________ .A....
72.The higher the content of carbon dioxide in the air,___________ .
A.the more heat it retains
B. more it retains heat
C.than it retains more heat
D.it retains more heat
72.The higher the content of carbon dioxide in the air,___________ .
A.the more heat it retains
B. more it retains heat
C.than it retains more heat
D.it retains more heat